Managing to repel the first attack, the trio are nevertheless in for a rough ride as a number of successive communities along the sea route grab their chance to teach their perceived arch enemies a deadly lesson...

Summary: As the planet Mongo approaches Earth’s orbit on its six year journey round the galaxy, Flash, Dale and Zarkov stand ready with a ship to repeat their first space flight ever (see S-001 On the Planet Mongo), this time to visit their many friends on the South continent.

But approaching the planet, the ship carrying the trio is felled by a powerful axe launched from an ice-ship in the polar region of Mongo, forcing Flash to make a perilous emergency landing in forbidding territory...

Summary: Landing on the planet Rota to exchange gold for badly needed uranium on Earth, Flash and Dale are not the only visitor’s to the robot-run community: the exiled Djonn Toth also approaches the planet in a purpose-built ship for his special condition.

Having become uranium dependent after a horrific power plant blast on his home planet, Toth destroy the master brain running Rota and demands an unlimited uranium supply backed up by a threat to release Armageddon on his hapless onlookers...

Summary: Heading for the Arctic Circle to assist in the launch of a space weather station, Flash spots an alien amphibian ship rising from the Arctic Sea.

As a puzzled Flash continues his flight, he soon passes over an isolated, unidentified outpost in the icy no-man's land and decides to investigate if the two discoveries are related – with good reason...

Summary: Approaching Earth's space traffic satellite hub on their way back from a mapping mission (see S-052 Dark Planet Prison), the unarmed Flash, Dale and Zarkov are almost caught by a slave traders' ship before being rescued and brought safely to the station.

With the slavers' ship safely detained on the ground, a delicate task of filtering out the culprits (who have hidden amongst the mass of human slaves already held in the ship) begins, a task made all the more complicated when it transpires that two person’s from Zarkov’s past are amongst the unfortunate passengers...

Summary: Charting planets in a star cluster, Flash, Dale and Zarkov approach a barren planet when they pick up a distress signal from the surface, where three murderers have been exiled as punishment for their crimes.

Unwittingly landing their ship to offer assistance, the rescuers are suddenly overpowered by the group and left to die on the “Dark Planet” as the homicidal exiles take over their ship...

Summary: Gazing at Venus from Dr. Zarkov’s Earth laboratory, a curious Flash and Dale decide to pilot a ship to the planet in order to penetrate the thick mist enveloping it and see what lies below.

Eventually reaching the planet, the couple steer their vessel through the shroud, but as they appear on the other side they inadvertently destroy an aerial probe launched by local scientists and must fight for their lives as the inhabitants seek to punish the “invaders”...